The arrival of warmer weather is a welcome relief for most of us – but, for others, skin conditions such as heat rash or prickly heat can make the summer a living hell. Dr. Sushil Ranga, a GP with a special interest in dermatology, explains what we need to do to avoid the common complaint as well as more serious sun allergies this summer.

CAUSE OF HEAT RASH:
Heat rash commonly occurs when the sweat ducts in the skin are blocked and the skin is unable to expel sweat through the pores, leading to a breakout of itchy red bumps. While it is not serious, it can be extremely uncomfortable and seriously disrupt your summer plans.

WHO IS AT RISK?
The most common type of sun allergy and prickly heat occurs mostly in Caucasians. Having a relative with a sun allergy means that there may be a genetic possibility of being more susceptible to it yourself. Using certain products can also exacerbate the condition, for example: fragrances, disinfectants and even some chemicals used in sunscreens.

A number of medications can make the skin more sensitive to sun – tablets to treat acne, sulfa-based drugs and some anti-inflammatory pain relief. In addition, having another skin condition, such as dermatitis, increases your risk of developing a sun allergy.

TREATING PRICKLY HEAT:

Keep Cool
Try to keep skin cool and dry by staying indoors or in air-conditioned spaces if possible. Cool water compresses used directly on inflamed areas will provide direct relief.

woman on a beach


Wear Natural Fabrics
Clothing should be made of breathable synthetic fabrics, otherwise try to use cotton.

Products to Avoid
Avoid excessive friction from clothing, using harsh chemicals on the skin or excessive skin products such as lotions/gels.

Medication
Topical steroids, antiseptics and antihistamines – in more severe cases a doctor may prescribe the use of mild topical steroids which can often give some immediate relief from symptoms.

HOW TO HELP EASE THE ITCH:

Soltan Sensitive Face SPF 50+: €8.50
If you are exposing yourself to the sun, ensure that you use an allergy-sensitive suncream that’s water resistant (SPF 50+). For many, the rash is triggered by UVA so opt for 4 or 5-star UVA protective sunscreen. It is important to check the UVA rating instead of the SPF, which only tells you about protection against UVB. Sunscreens often fail to completely prevent sun allergy rashes from occurring, but they can help minimise it. Sunscreens containing zinc may be more effective than pure chemical sunscreens, as they filter out more UVA. If prevention is difficult, it’s best to prepare yourself so that you don’t have to suffer for too long.


Avene Thermal Water, €8.99
Thermal Spring Water with its therapeutic properties has intense soothing and softening benefits for the skin. The formula relieves itching and is suitable for even the most sensitive skin, helping to combat skin irritations.

LA Roche Posay - Toleriane Ultra Night, €18.50
An overnight cream with intense soothing powers that targets areas of hyper-sensitivity and irritation, caused by allergens.

Caldesene Powder, €7
Caldesene Powder is a medicated formula that can also be used to ease the discomfort of prickly heat, chafing and sunburn.